An American man has been detained in the mountains of Pakistan after local authorities found him carrying a sword, pistol and night-vision goggles on a Rambo-style solo mission to hunt down and kill Osama bin Laden. Friends and family say construction worker Gary Brooks Faulkner is a devout, good-humored Christian who often talked about building a porch or framing a house — not taking down the world's most-wanted terrorist. They had few clues to explain his 7,300-mile journey. "I'm like, 'What? They got him where?'" said Daren Paredes, a friend who met Faulkner in the northern Colorado town of Greeley....